Our news partner Channel 5 is reporting that a suspect in the Boston Marathon bombing has been killed and police are searching for the second following a wild gunfight in Watertown early this morning.

WCVB-TV

A suspect in the Boston Marathon bombings was killed early Friday morning, while the second suspect was being sought following an attack on police officers in Watertown that involved explosives and gunfire.

The man known as suspect 2, the man wearing the white hat, is the suspect being sought, sources told NewsCenter 5's Kathy Curran.

State police spokesman David Procopio said, "The incident in Watertown did involve what we believe to be explosive devices possibly, potentially, being used against the police officers."

The situation was linked to the fatal shooting of an MIT police officer late Thursday night, sources told NewsCenter 5.

The scene was located on Laurel and Dexter Street in Watertown. Dozens of police officers and FBI agents were in the neighborhood and a helicopter circled overhead.

A State Police spokesman says an MBTA police officer was wounded in Watertown.

Police sources tell NewsCenter 5 one of the suspects in the Watertown shooting, who is still being sought, is the marathon attack suspect seen wearing a white hat.

Police urged everyone to stay inside of their homes. The area was considered extremely dangerous.

The SWAT team, Cambridge, Boston and Watertown Police along with Homeland Security and the ATF all rushed to the area.

According to Sean Kelly, police were searching the area with guns drawn.